Start writing a team piece (get started with components)
This article is mainly for the people who want to improve their ASP level to write! The ASP code into a component, the developer is not only to speed up the ASP, but also to protect their own code. This article is written, but also to give users want to develop components of an introductory lesson!
Next, we'll write a very simple component, focusing on knowing how to develop DLL components, not their complex code! It all depends on your own efforts in the future.
Server-side components
First, server-side components are different from the client's components. The client's components are transmitted over the network, depending on the HTML. And can only be useful on IE. but the server-side component is run on the server side, and it performs various operations on the server. So, all browsers are available, It relies on the server rather than the browser.
When IIS is requested to execute an ASP program, it first finds the code between the tags in the ASP file, and executes it (or it can be between the code). If the ASP program was previously invoked, it would use an in-memory compiled program to return HTML code to the user, if not, So it's recompiled. Here the ASP has a little more speed advantage than CGI, because CGI is a thread for every request. This greatly consumes the resources of the server.
If you don't want to write the program yourself, you can run it in IIS!?! You can do it now! With VB5 (now VB6, of course), you'll be able to create dynamic linked libraries (DLL files) that can run directly on IIS (if an ASP file is requested).
Requirements for systems and software
You need a 32-bit operating system to run the ASP. Of course you also have to install IIS or PWS. Our following program is developed under the WINDOWS95+PWS+VB5 environment.
Here we go
Start your VB, select the ActiveX icon. This icon can be found in the new project! VB will provide a default project name (Project1) and class name (Class1). We'll get rid of all two names. Before renaming, please confirm that we have Microsoft Active Server Pages Object Library, It's very useful in our program. Select project from the menu, and then select References in which you will see the references window, from which you can select Microsoft Active Server Pages Object Library.
